4000 Router Series Interface Module Guide

Attribute Descri

tion

Interface standard

• G.703/T1 102

• G.704

• AT&T TR 54016

• AT&T TR 62411

• ANSI T1.403

Interface rate 1.544 Mbps

Cable type 8T1 conversion cable

Operating mode

CT1, ISDN PRI (only supported by the MIM-8T1)

FT1 (only supported by the MIM-8T1-F)

Supported service

• Backup

• Terminal access service

• ISDN PRI (only supported by the MIM-8T1)

Interface LEDs

The following figure illustrates an MIM-8T1 panel.

Figure 53 MIM-8T1 panel

The following figure illustrates an MIM-8T1-F panel.

Figure 54 MIM-8T1-F panel

The following table describes the LEDs on the MIM-8T1/8T1-F panel:

Table 79 Description for the LEDs on the MIM-8T1/MIM-8T1-F panel

LED Descri

tion

LINK/ACT

• ON means carrier signal has been received.

• Flashing means data is being received or/and transmitted.

• OFF means no carrier signal has been received.

LP/AL

• ON means the interface is in a loopback.

• Flashing means an AIS, LFA, or RAI alarm signal is present.

• OFF means no loopback or alarm is present.

Note:

AIS = Alarm indication signal; LFA = loss of frame alignment; RAI = Remote alarm indication

Interface cables and the connection methods

For more information about T1 interface cables and the connection methods, see "T1 interface."